Method for regenerating HF/sulfolane alkylation catalyst
US5264651A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Dec 17, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention provides a method for separating ASO from a mixture containing ASO, HF and sulfolane comprising the steps of: PA1 (a) contacting said mixture with a sorbent to selectively sorb HF and water from said mixture to evolve an intermediate product containing less than 5 weight percent HF; PA1 (b) charging said intermediate product to a gravitational separation zone; PA1 (c) holding said intermediate product in said gravitational separation zone for time sufficient to evolve two at least partially immiscible liquid phases in said gravitational separation zone; and PA1 (d) withdrawing a less-dense phase enriched in ASO and a more-dense phase enriched in sulfolane from said gravitational separation zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.